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authorPaul Walmsley <paul@pwsan.com>2014-12-09 22:36:50 +0000
committerThierry Reding <treding@nvidia.com>2015-01-09 13:41:19 +0100
commit2b20b6164ec737bec67641564e477aa6e008748b (patch)
tree71c282f954dd3fe063e4fd9c6c1677d26bcf065f
parent97bf6af1f928216fd6c5a66e8a57bfa95a659672 (diff)
soc/tegra: pmc: restrict compilation of suspend-related support to ARM
Tegra SoCs with 64-bit ARM support don't currently support deep CPU low-power states in mainline Linux. When this support is added in the future, it will probably look rather different from the existing 32-bit ARM support, since the ARM64 maintainers' strong preference is to use PSCI to implement it. So, for the time being, prevent the CPU suspend-related code and data in the Tegra PMC driver from compiling on ARM64. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Paul Walmsley <pwalmsley@nvidia.com> Cc: Thierry Reding <treding@nvidia.com> Cc: Allen Martin <amartin@nvidia.com> Cc: Stephen Warren <swarren@nvidia.com> Cc: Alexandre Courbot <gnurou@gmail.com> Signed-off-by: Thierry Reding <treding@nvidia.com>
-rw-r--r--drivers/soc/tegra/pmc.c7
-rw-r--r--include/soc/tegra/pm.h2
2 files changed, 6 insertions, 3 deletions
diff --git a/drivers/soc/tegra/pmc.c b/drivers/soc/tegra/pmc.c
index a2c0ceb95f8f..4bdc654bd747 100644
--- a/drivers/soc/tegra/pmc.c
+++ b/drivers/soc/tegra/pmc.c
@@ -739,7 +739,7 @@ static int tegra_pmc_probe(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM_SLEEP
+#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
static int tegra_pmc_suspend(struct device *dev)
{
tegra_pmc_writel(virt_to_phys(tegra_resume), PMC_SCRATCH41);
@@ -753,10 +753,11 @@ static int tegra_pmc_resume(struct device *dev)
return 0;
}
-#endif
static SIMPLE_DEV_PM_OPS(tegra_pmc_pm_ops, tegra_pmc_suspend, tegra_pmc_resume);
+#endif
+
static const char * const tegra20_powergates[] = {
[TEGRA_POWERGATE_CPU] = "cpu",
[TEGRA_POWERGATE_3D] = "3d",
@@ -894,7 +895,9 @@ static struct platform_driver tegra_pmc_driver = {
.name = "tegra-pmc",
.suppress_bind_attrs = true,
.of_match_table = tegra_pmc_match,
+#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
.pm = &tegra_pmc_pm_ops,
+#endif
},
.probe = tegra_pmc_probe,
};
diff --git a/include/soc/tegra/pm.h b/include/soc/tegra/pm.h
index 30fe2078a547..03909101d4e7 100644
--- a/include/soc/tegra/pm.h
+++ b/include/soc/tegra/pm.h
@@ -17,7 +17,7 @@ enum tegra_suspend_mode {
TEGRA_MAX_SUSPEND_MODE,
};
-#ifdef CONFIG_PM_SLEEP
+#if defined(CONFIG_PM_SLEEP) && defined(CONFIG_ARM)
enum tegra_suspend_mode
tegra_pm_validate_suspend_mode(enum tegra_suspend_mode mode);

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